I was afraid of this, when I bought my 15PM. Traveled to Chile, and what would have been a quick transaction at the Entel store ended in disappointment. Apparently you need a Chilean ID to purchase an eSIM. Fortunately, I brought a pixel 3 I can hotspot, and takes a nano sim, but it’s something of a hassle. My only regret so far.
If I’m traveling, I’m paying my carrier for their international plan. I’m not spending thousands of dollars on an international trip just to worry about saving an extra $50-$100 on cell service. Plus I do not want to waste a single second hassling with a foreign carrier. I only have so much time to enjoy my vacation. Dealing with telecoms is not in my to do list.